git/builtin
Jeff King 594fa9998c odb_mkstemp: write filename into strbuf
The odb_mkstemp() function expects the caller to provide a
fixed buffer to write the resulting tempfile name into. But
it creates the template using snprintf without checking the
return value. This means we could silently truncate the
filename.

In practice, it's unlikely that the truncation would end in
the template-pattern that mkstemp needs to open the file. So
we'd probably end up failing either way, unless the path was
specially crafted.

The simplest fix would be to notice the truncation and die.
However, we can observe that most callers immediately
xstrdup() the result anyway. So instead, let's switch to
using a strbuf, which is easier for them (and isn't a big
deal for the other 2 callers, who can just strbuf_release
when they're done with it).

Note that many of the callers used static buffers, but this
was purely to avoid putting a large buffer on the stack. We
never passed the static buffers out of the function, so
there's no complicated memory handling we need to change.

Signed-off-by: Jeff King <peff@peff.net>
2017-03-28 15:28:04 -07:00
..
add.c hold_locked_index(): align error handling with hold_lockfile_for_update() 2016-12-07 11:31:59 -08:00
am.c delete_ref: accept a reflog message argument 2017-02-20 22:04:47 -08:00
annotate.c
apply.c Convert read_mmblob to take struct object_id. 2016-09-07 12:59:42 -07:00
archive.c archive: read local configuration 2016-11-22 13:55:20 -08:00
bisect--helper.c
blame.c Merge branch 'rs/blame-code-cleanup' 2017-03-17 13:50:24 -07:00
branch.c Merge branch 'bc/object-id' 2017-03-17 13:50:25 -07:00
bundle.c bundle: use prefix_filename with bundle path 2017-03-21 11:18:41 -07:00
cat-file.c Convert object iteration callbacks to struct object_id 2017-02-22 10:12:15 -08:00
check-attr.c attr: tighten const correctness with git_attr and match_attr 2017-02-01 13:46:53 -08:00
check-ignore.c give "nbuf" strbuf a more meaningful name 2016-02-01 13:43:02 -08:00
check-mailmap.c strbuf: introduce strbuf_getline_{lf,nul}() 2016-01-15 10:12:51 -08:00
check-ref-format.c use xmallocz to avoid size arithmetic 2016-02-22 14:51:09 -08:00
checkout-index.c hold_locked_index(): align error handling with hold_lockfile_for_update() 2016-12-07 11:31:59 -08:00
checkout.c Merge branch 'sb/checkout-recurse-submodules' 2017-03-28 14:05:58 -07:00
clean.c Merge branch 'nd/clean-preserve-errno-in-warning' 2017-02-27 13:57:16 -08:00
clone.c builtin/clone: convert to struct object_id 2017-02-22 10:12:15 -08:00
column.c column: read lines with strbuf_getline() 2016-01-15 10:35:07 -08:00
commit-tree.c builtin/commit-tree: convert to struct object_id 2016-09-07 12:59:43 -07:00
commit.c builtin/commit: convert to struct object_id 2017-02-20 01:11:26 -08:00
config.c prefix_filename: return newly allocated string 2017-03-21 11:18:41 -07:00
count-objects.c Convert object iteration callbacks to struct object_id 2017-02-22 10:12:15 -08:00
credential.c
describe.c builtin/describe: introduce --broken flag 2017-03-22 10:13:41 -07:00
diff-files.c diff: run arguments through precompose_argv 2016-05-13 14:35:49 -07:00
diff-index.c diff: run arguments through precompose_argv 2016-05-13 14:35:49 -07:00
diff-tree.c Merge branch 'bc/object-id' 2017-03-17 13:50:25 -07:00
diff.c use SWAP macro 2017-01-30 14:17:00 -08:00
difftool.c difftool: handle modified symlinks in dir-diff mode 2017-03-15 12:08:10 -07:00
fast-export.c builtin/fast-export: convert to struct object_id 2017-02-22 10:12:15 -08:00
fetch-pack.c fetch-pack: move code to report unmatched refs to a function 2017-03-02 11:12:53 -08:00
fetch.c Merge branch 'js/remote-rename-with-half-configured-remote' 2017-01-31 13:14:59 -08:00
fmt-merge-msg.c builtin/fmt-merge-message: convert to struct object_id 2017-02-22 10:12:15 -08:00
for-each-ref.c tag, branch, for-each-ref: add --ignore-case for sorting and filtering 2016-12-05 14:59:29 -08:00
fsck.c Convert object iteration callbacks to struct object_id 2017-02-22 10:12:15 -08:00
gc.c Merge branch 'cc/split-index-config' 2017-03-17 13:50:23 -07:00
get-tar-commit-id.c usage: do not insist that standard input must come from a file 2015-10-16 15:27:52 -07:00
grep.c Merge branch 'sb/checkout-recurse-submodules' 2017-03-28 14:05:58 -07:00
hash-object.c prefix_filename: return newly allocated string 2017-03-21 11:18:41 -07:00
help.c Merge branch 'js/no-html-bypass-on-windows' into maint 2016-09-08 21:35:55 -07:00
index-pack.c odb_mkstemp: write filename into strbuf 2017-03-28 15:28:04 -07:00
init-db.c real_pathdup(): fix callsites that wanted it to die on error 2017-03-08 14:38:41 -08:00
interpret-trailers.c Merge branch 'jk/parseopt-string-list' into jk/string-list-static-init 2016-06-13 10:37:48 -07:00
log.c prefix_filename: return newly allocated string 2017-03-21 11:18:41 -07:00
ls-files.c ls-files: move only kept cache entries in prune_cache() 2017-02-13 12:06:10 -08:00
ls-remote.c ls-remote: add support for showing symrefs 2016-01-19 10:07:56 -08:00
ls-tree.c ls-tree: convert show_recursive to use the pathspec struct interface 2017-01-08 18:04:17 -08:00
mailinfo.c prefix_filename: return newly allocated string 2017-03-21 11:18:41 -07:00
mailsplit.c mailsplit: support unescaping mboxrd messages 2016-06-06 11:14:43 -07:00
merge-base.c builtin/merge-base: convert to struct object_id 2017-02-22 10:12:16 -08:00
merge-file.c prefix_filename: return newly allocated string 2017-03-21 11:18:41 -07:00
merge-index.c use oid_to_hex_r() for converting struct object_id hashes to hex strings 2017-01-30 14:23:40 -08:00
merge-ours.c
merge-recursive.c i18n: merge-recursive: mark verbose message for translation 2016-09-15 13:17:32 -07:00
merge-tree.c struct name_entry: use struct object_id instead of unsigned char sha1[20] 2016-04-25 14:23:42 -07:00
merge.c Merge branch 'bc/object-id' 2017-03-17 13:50:25 -07:00
mktag.c usage: do not insist that standard input must come from a file 2015-10-16 15:27:52 -07:00
mktree.c use QSORT 2016-09-29 15:42:18 -07:00
mv.c Merge branch 'bw/pathspec-cleanup' 2017-01-18 15:12:15 -08:00
name-rev.c name-rev: add support to exclude refs by pattern match 2017-01-23 18:33:17 -08:00
notes.c Merge branch 'bc/object-id' 2017-03-17 13:50:25 -07:00
pack-objects.c Merge branch 'jk/fast-import-cleanup' 2017-03-28 14:05:59 -07:00
pack-redundant.c convert trivial cases to ALLOC_ARRAY 2016-02-22 14:51:09 -08:00
pack-refs.c standardize usage info string format 2015-01-14 09:32:04 -08:00
patch-id.c Merge branch 'rs/patch-id-use-skip-prefix' 2016-06-03 14:38:03 -07:00
prune-packed.c Convert object iteration callbacks to struct object_id 2017-02-22 10:12:15 -08:00
prune.c Convert object iteration callbacks to struct object_id 2017-02-22 10:12:15 -08:00
pull.c Merge branch 'jc/pull-rebase-ff' into maint 2017-01-17 15:11:05 -08:00
push.c Merge branch 'bw/push-submodule-only' 2017-01-31 13:14:56 -08:00
read-tree.c builtin/read-tree: add --recurse-submodules switch 2017-03-16 14:07:16 -07:00
rebase--helper.c rebase--helper: add a builtin helper for interactive rebases 2017-02-09 14:55:26 -08:00
receive-pack.c Merge branch 'rs/update-hook-optim' 2017-03-24 13:07:37 -07:00
reflog.c refs: convert each_reflog_ent_fn to struct object_id 2017-02-22 10:12:15 -08:00
remote-ext.c pkt-line: rename packet_write() to packet_write_fmt() 2016-10-17 11:36:50 -07:00
remote-fd.c
remote.c Merge branch 'rl/remote-allow-missing-branch-name-merge' into maint 2017-03-21 15:03:28 -07:00
repack.c repack: die on incremental + write-bitmap-index 2016-12-29 13:45:37 -08:00
replace.c Merge branch 'bc/object-id' 2017-03-17 13:50:25 -07:00
rerere.c Sync with 2.6.1 2015-10-05 13:20:08 -07:00
reset.c delete_ref: accept a reflog message argument 2017-02-20 22:04:47 -08:00
rev-list.c use oid_to_hex_r() for converting struct object_id hashes to hex strings 2017-01-30 14:23:40 -08:00
rev-parse.c Merge branch 'jk/prefix-filename' 2017-03-27 10:59:26 -07:00
revert.c Merge branch 'jk/cherry-pick-0-mainline' 2017-03-17 13:50:28 -07:00
rm.c rm: reuse strbuf for all remove_dir_recursively() calls, again 2017-02-13 14:33:32 -08:00
send-pack.c remote-curl: allow push options 2017-03-22 15:41:21 -07:00
shortlog.c Merge branch 'rs/shortlog-cleanup' 2017-03-24 13:07:37 -07:00
show-branch.c Merge branch 'jk/show-branch-lift-name-len-limit' into maint 2017-03-21 15:03:29 -07:00
show-ref.c show-ref: remove a stale comment 2017-01-23 18:51:56 -08:00
stripspace.c stripspace: respect repository config 2016-11-21 11:00:38 -08:00
submodule--helper.c Merge branch 'sb/checkout-recurse-submodules' 2017-03-28 14:05:58 -07:00
symbolic-ref.c delete_ref: accept a reflog message argument 2017-02-20 22:04:47 -08:00
tag.c Merge branch 'km/delete-ref-reflog-message' 2017-02-27 13:57:18 -08:00
unpack-file.c convert trivial sprintf / strcpy calls to xsnprintf 2015-09-25 10:18:18 -07:00
unpack-objects.c unpack-objects: add --max-input-size=<size> option 2016-08-24 12:31:05 -07:00
update-index.c update-index: warn in case of split-index incoherency 2017-03-01 13:24:21 -08:00
update-ref.c update-ref: pass reflog message to delete_ref() 2017-02-20 22:04:47 -08:00
update-server-info.c
upload-archive.c archive: read local configuration 2016-11-22 13:55:20 -08:00
var.c
verify-commit.c verify-commit: add option to print raw gpg status information 2015-06-22 14:20:47 -07:00
verify-pack.c standardize usage info string format 2015-01-14 09:32:04 -08:00
verify-tag.c builtin/verify-tag: add --format to verify-tag 2017-01-17 16:10:22 -08:00
worktree.c prefix_filename: return newly allocated string 2017-03-21 11:18:41 -07:00
write-tree.c